28. We've saved nothing this year, ___________?

27. I suppose you know the meaning of the word, __________?

26. They must be hungry, __________?

25. Something'll have to be done about the price, _________?

24. You must have stayed at home last night, _________?

23. We ought to read this book, _________?

22. I must answer the letter, _________?

21. My brother often has colds, __________?

20. We had to take the first train, __________?

19. There used to be a church behind the cemetery, ___________?